Centrifugal machine.



No. 685,3l9. f Patented oef. 29, |9m.-

- .1. BEnmGAN.

CENTRIFUGAL MACHINE.

(Applimion med Dec. 2e, 1900.)

(No Model.)

3 Sheets-Sheet I.

- /N VEA/ron Pd. @www No. 685,3I9. Patented Oct. 29, l90l.

J. J. BERRIGAN.

CVENTFIFUGAL MACHINE.

(Appumimi med nec. 2e, 1900.) v

(No llodel.) v 3 Shets-Sheet 3.

v w/r/vEssEs.- -nvvEA/Ton d M www @mw 5 l @MMM TH: Nonqxs Pzrznsco. FHomLlTuo., WASHINGTON. n. c,

UNITED STAAT-'Es i PATENT OFFICE.

JOHN JOSEPH BERRIGAN, OF ORANGE, NEWJERSEY, ASSIGNOR TO FRANCIS J. ABEND, OF NEW YORK, N. Y., AND JOHN BERNSTROM, OF STOCKHOLM,

SWEDEN.

CENTRIFUGAL MACHINE.

SPECIFICATION forming` part f Letters Patent N0. 685,319, dated October 29, 1901. Application led December 26, 1900. Serial No. 41,097. (No model.)

T0 all whom t may concern.: y

Be it knownthat LJOHN JOSEPH BERRIGAN, of Orange, Essex county, New Jersey, have invented a new and useful Improvement in Centrifugal Machines, of which the following is a specification.

My invention relates to a machine for effecting by the action of centrifugal force the separation of the constituentsof a fluid mass to and the delivery thereof continuously from the machine during its operation. Y

My invention consists in a centrifugal ma chine having a rotary receptacle for the combined constituents to be treated; also, in such 15 a receptacle provided with means for conveying one of the separated constituents from one side to another side of said receptacle; also, in such a receptacle having on its interior two plane surfaces, onone ofwhich the zo combined constituents are deposited while the other is rendered substantially dry by the action of centrifugal force due to the rotation of said receptacle; also, in such a receptacle as last defined means for transporting one of the separated constituents from the surface of deposit to the dry surface; also, in a receptacle rotary on an axis passing through it an endless belt having blades moving in proximity to the inner periphery 3o thereof and operating to convey the solid constituent separated from the place of deposit to an escape-opening; also, in the various mechanisms and combinations more particularly pointed out in the claims.

ln the accompanying drawings, Figure 1 is alongitudinal section on the line 1 1 of Fig. 5. Fig. 2 is a detail view showing the device for regulating the tension of the belt carrying the blades. Fig. 3 is a sectional view on 4o the line 3 3 of Fig. 2. Fig. 4 is a transverse section on the line 4 4 of Fig. 1. Fig. 5 is a transverse section on the line 5 5 of Fig. 1. Fig. 6 is a transverse section on the line 6 6 of Fig. 1.

Similar numbers of reference indicate like parts.

7 is the outer cylindrical shell or case, provided With screw-threads at its extremities to receive the heads 8 and 9. The head Shas 5o a central projection 10 to receive the beltpulley 11, by which the apparatus is rotated. The head 9 is in the form of an annular conical frustum. Within the shell 7 is a re- 'ceptacle 12, formed of two rectangular boxshaped portions 13 and 14, which are bolted 55 together by the bolts shown in cross-section in Fig..1 at 15, 16, and 17. The meeting edges' of the boxes 13 and 14 are provided with grooves to receive the packing. (Shown at 18, Fig. 6.) Aspshown in Figs. 4, 5, and 6o .6, the transverse section of the receptacle 12,

imeter in the form of a circular arc, so that 7o they t Within the cylindrical shell 7, and so serve to support the receptacle 12 in said shell.

Between the exterior of receptacle 12 and the shell is a spacing-piece 23, and a second 'spacing-piece 24 is introduced between the end of the receptacle 12 and thehead 8. Extending through the projections 10 on head S is a shaft 25, which is stepped in a recess 26, formed in the meeting faces of the boxes 13 8o and 14. Between the bottom of this recess and a concave end of the shaft 25 is inter posed a ball 27. On the shaft 25 and between the receptacle 12 and the head 8 is secured a gear 28. It will be observed from Fig. 1 that one longitudinal wall 29 of receptacle 12 is farther from the axis of rotation of said receptacle than is the opposite longitudinal wall 30. I The two boxes 13 and 14 have at their ends 9o opposite to those containing the recess 26 semitubular projections, vone of which is shown at 31. The said semitubular projections when the boxes are placed together unite to form a complete tube 32, which is the inlet-d uct for the material to be treated. The shaft 25 at one end of the device and the inlet-pipe 32 on the other are to be supported in any suitable ixed bearings, so that the shell 7 and its contents may be rotated on a roe longitudinal axis. This rotation is effected by any suitable belt applied to the pulley 11. The receptacle 12 then of course rotates with the shell. The surfaces 29 and 30 of the inner periphery of receptacle 12 are plane surfaces and are relatively parallel.

Now assume a certain quantity of liquid to be introduced through the inlet 32. It will meet the inclined wall 33, and thus be directed against the surface 29 of receptacle 12. This surface is farther from the axis of rotation of the receptacle 12 than is the opposite surface 30. Therefore by reason of its direction against said wall 29 and by reason of the opera-tion of centrifugal force due to the rotation of the entire device the liquid will rest against the surface 29 so long as the receptacle is in rotation. If the liquid is continuously introduced at the inlet 32, then some means must be provided for continuously discharging it. Such a means is shown in the aperture 34, which is formed in the wall of the box 13 and extends through the projecting web 2O and through the peripherical wall of the shell 7. (See Fig. 6.) The liquid introduced will now form alayer against the surface 29, which layer will extend to the opening 34, at which point the liquid from that layer will escape and in fact be projected by the centrifugal force of rotation out through the periphery of the shell. It will be understood, therefore, that considering simply a liquid continuously admitted to the apparatus that liquid enters at 32, is thrown against the surface 29, on which it forms a layer extending to the escape-opening 34, and

continuously escapes through that opening. I will now describe the means whereby I separate from this liquid the solid material which is combined with it. l

35 and 36, Fig. 5, are sprocket-wheels fast upon the hub 37. One end of the shaft 38, supporting this hub, is pivoted at 39 in the wall 40 of the box 14. The said shaft extends through the opposite wall of the boxI 13 and has on its extremity a beveled gear 42, which is on a short shaft 43, Fig. 5, also dotted lines, Fig. 1, which shaft is supported in brackets 44 on the exterior of box 13. The other end of the shaft from that which carries the beveled gear 42 is a gear 45, and this gear 45 engages with the gear 28, already described as on shaft 25, Fig. 1. Shaft 25 is rotated by means of a belt-pulley46. Therefore, to sum up the operation of the foregoing parts, when pulley 46 is rotated the shaft 25 is rotated, and from that shaft'motion is communicated by means of the gear 28 and gear 45 to the short shaft 43, and thence by the beveled gearing 41 and 42 to the shaft 38, and thus the sprocket-wheels 35 and 3G are set in rotation. Engaging sprocket-wheels 35 and 3G are endless chain belts 47 and 48, which belts pass over corresponding sprocketwheels 49 and 50, which are located at the opposite end of the receptacle 12. These sprocket-wheels 49 and 50 are provided with a hub 5l, Fig. 4, which is mounted on a shaft the ends 52 and 53 of which are received in movable bearings 54 and 55, Figs. 2, 3, and 4. These bearings are received in slots formed in the walls of the boxes 13 and 14 and have flanges which are received in guideways 56 and 57, secured on the inner faces of these walls. Each sliding bearing 54 and has a projection 58, which extends outside of the wall of the boxes, and against this projection bears the adjusting-screw 59, which works in a fixed bracket 60, bolted on said wall.

The function of the sliding bearings and adjusting screws is to move the sprocketwheels 49 and 50, so that in this way the belts 47 and 48 may be adjusted in point of tightness and in order to take up wear.

The belts 47 and 48 carry blades, two of which are shown at G1 and 92 in Fig. 1 in cross-section and in side View in Fig. 4, and these blades by the rotation of the sprocketwheels which carry them are caused to move in a direction longitudinally the receptacle 12 in close proximity to the walls 29 and 30 thereof.

Between the receptacle 12 and the shell 7 there is interposed a plate 63, Figs. 1 and 4, in which there is an opening (i4, which opening registers with similarly-spaced apertures G5 in the receptacle l2 and 66 in the shell 7.

The operation of the entire machine for the separation of solid and liquid constituents of a fluid mass introduced into the inlet at 32 can now be followed. The mass is directed by the plate 33 against the wall 29 of the receptacle 12 in the manner already described with respect to liquid only. By reason of the action of centrifugal force that mass then forms a layer against the surface 29, but not against the surface 30, this, as already stated, because of the greater distance of surface 29 from the axis of rotation. The layer formed on surface 29 will contain both solid and liquid. The liquid will escape from the opening 34 and so in the manner already described out of the apparatus. The solid then remains lying against the surface 29. The sprocket-wheels, however, are constantly rotating and carrying their blades along the surface 29 in the direction of the arrow, Fig. 1. The effect of these blades is to remove the solid material from the surface 29, carry it to the left of Fig. 1, over the intervening curved surface, and so along the surface 30. The surface 30, however, is a dry surfacethat is to say, it is substantially dry-because the liquid of the fluid mass forms its layer not against surface 30, but against surface 29. As the solid material from surface 29 is carried around by the blades G1 it passes the aperture 67, Figs. 1 and 6. This aperture, as shown in Fig. G, extends entirely through the projecting web 2O and the wall of shell 7, and any possible liquid which may be car- IOO IIO

IZO

ried in advance of the blades has an opportunity to drain through it. The solid is carried onward over the dry or merely moist surface 30 until it reaches the aperture 65 and the corresponding opening 66 in the wall of shell 7, and thus the solid finally escapes out of the machine. It will be seen, therefore,that as the combined constitucnts-solid and liquid-are continuously fed into the inlet 32 they continuously escape from the machine, the liquid at the openings Si and 67,-

the solid at the opening 65.

For the purpose of rigidly securing the receptacle 12 in th'e shell 7 I provide the cylindrical screws 68 and 69, Fig. 6, the openings in these screws being in prolongation of the escape-openings 34 and 67.

In another application for Letters Patent, Serial No. 38,740, series of 1900, filed December 5, 1900, I have fully set forth my aforesaid principle and a construction embodying the same, and have there made certain claims which broadly cover and include the structure herein disclosed. It is therefore to be understood that the subject-matter of said claims in said application is not herein claimed by me.

I claim-n 1. In a centrifugal machine, a rotary receptacle for combined constituents to be separated eccentrically disposed with reference to the axis of rotation passing through said vessel and having its inner perimeter of polygonal cross-section in a plane at right angles to said axis of rotation, substantially as described.

2. In acentrifugal machine, a rotary receptacle for the combined solid and liquid constituents to be separated having its inner perimeter of polygonal cross-section in a plane at right angles to its axis of rotation, and means for transporting said solid constituents deposited on the inner periphery of said receptacle from one side of said receptacle to another side, substantially as described.

3. In a centrifugal machine, a rotary receptacle for the combined solid and liquid constituents to be separated eccentrically disposed with reference to its axis of rotation having its inner perimeter of polygonal crosssection in a plane at right angles to said axis, and means for transporting the solid constituents deposited by the action of centrifugal force from one side of the inner periphery of said receptacle to another side, substantially as described.

4. In a centrifugal machine, a rotary receptacle for the combined constituents to be separated having internally on its peripherical wall two flat portions unequallydistant from the axis of rotation passing through said vessel, substantially as described.

5. In a centrifugal machine, a rotary receptacle for the combined constituents to be separated having internally on its peripherical wall two fiat portions unequally distant from the axis of rotation passing through said vessel, and means for transporting one of said constituents from the fiat portion farthest from said axis to the other fiat portion, substantially as described.

6. In a centrifugal machine, a rotary receptacle for the combined constituents to be separated having internally on its peripherical wall two fiat portions parallel to one another and on opposite sides of and unequally distant from the axis of rotation'passin g through said vessel, substantially as described.

7. In a centrifugal machine a rotary receptacle for the combined constituents to be separated having internally on its peripherical wall two lia-t portions unequally distant from the axis of rotation passing through said Vessel, and an intervening curved portion, and means for transporting one of said constituents from the fiat portion farthest from said axis over said intervening curved portion to the other flat portion, substantially as described.

8. In a centrifugal machine a rotary receptacle for the combined constituents to be separated having internally on its peripherical wall tWo flat portions unequally distant from the axis of rotation passing through said vessel, and means for transporting oneof said constituents from the fiat portion farthest from said axis to the other fiat portion, said last-named flat portion being provided with a discharge-opening for the escapeof said constituent, substantially as described.

9. In a centrifugal machine a rotary receptacle for combined constituents to be sepavrated having internally on its peripherical wall two fiat portions unequally distant from the axis of rotation passing through said vessel, and a continuously-acting removing device operating to transport one of said constituents from the flat portion farthest from said axis to the other flat portion, substantially as described.

10. In a centrifugal machine,a rotary receptacle for the combined constituents to be separated having internally on its peripherical wall two flat portions unequally distant from the axis of rotation passing through said vessel, and an endless traveling support located between said flat portions and provided with blades; the said support and blades being constructed and arranged so that said blades will move in proximity to said fiat portions and over said portions successively to convey one of said constituents from the fiat portion farthest from said axis to the other flat portion, substantially as described.

1l. In a centrifugal machine, a cylindrical rotary vessel and eccentricall y disposed therein a receptacle for the combined constituents to be treated having its inner perimeter polygonal in cross-section in a plane at right angles to the axis of rotation of said vessel, substantially as described.

12. The combination in a centrifugal maroo IIO

chine of the cylindrical rotary vessel 7, the receptacle l2 eccentrically placed therein and provided with inlet-opening 32 and outlets 34C and 65 and Within said receptacle the traveling blades 61 and endless belts and pulleys supporting the same, and means for continuously actuating said belts to carry said blades along and in proximity to the internal surface of said receptacle, substantially as described.

JOHN JOSEPH BERRIGAN.

Witnesses:

JOHN S. PAUL, ROBERT H. Hmm?.` 

